<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="UTF-8"/>
        <title>
            Document
        </title>
        <script src= "angular.js"></script>
    </head>
    <body ng-app>
        <h1>
            {{ val }}
        </h1>
        <input type="text" ng-model="val"/>
    </body>
</html>
